Expand - come to be larger, better, or greater; increase or obtain; "The challenge grew way too massive for me"; "Her small business grew rapid" bubble up, intumesce - transfer upwards in bubbles, as with the result of heating; also used metaphorically; "Gases bubbled up within the earth"; "Marx's Concepts https://open.spotify.com/track/34R2ybXWvR8moYMvTNxLRZ?si=69c44df25f7d4fd5